Home / 133,144.86-183,741.15-75,781.38

Finding the Fourth Proportional to 133,144.86, 183,741.15 and 75,781.38

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Solution

The fourth proportional to 133,144.86, 183,741.15 and 75,781.38 is: 104,579.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,144.86 : 183,741.15 = 75,781.38 : x
  2. Step 2: Convert to fraction form
    133,144.86/183,741.15 = 75,781.38/x
  3. Step 3: Cross multiply
    133,144.86x = 183,741.15 × 75,781.38
  4. Step 4: Simplify right side
    133,144.86x = 13,924,157,909.79
  5. Step 5: Solve for x
    x = 13,924,157,909.79/133,144.86
  6. Step 6: Final answer
    x = 104,579.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.